1986xj
January 17th, 2004, 21:45
Just a note for the archives, when doing the 2.8 - 3.4 swap make sure the 2.8 flywheel or flex plate is machined and 0 balanced. The 3.4 is internally balanced so the 2.8 flywheel which is externally balanced will cause the 3.4 to run a bit lumpy from idle to about 2,000 rpm. The PO of mine had the swap done and the shop did not do this, I spent a week or so tweaking and trying everything to smooth it out till I finnally decided that must be the problem.... and it was. Once the shop is done balancing it I'll post back on how far out it was.
HTH,
Mike B.
HTH,
Mike B.